I’ve been coming to the Edinburgh Fringe for five years, but this is the first time I’ve dipped my toe into the stormy waters of performing. My show Iain Dale All Talk is a series of 24 interviews with politicians, media personalities and, er, Christopher Biggins. As I write this, I’ve just compèred the last show of the run and can look back on 12 days of variety, headline-making, insight and laughs.